Home / 66,571,048.40-99,862,102.20-21,131,560.40

Finding the Fourth Proportional to 66,571,048.40, 99,862,102.20 and 21,131,560.40

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Solution

The fourth proportional to 66,571,048.40, 99,862,102.20 and 21,131,560.40 is: 31,699,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,571,048.40 : 99,862,102.20 = 21,131,560.40 : x
  2. Step 2: Convert to fraction form
    66,571,048.40/99,862,102.20 = 21,131,560.40/x
  3. Step 3: Cross multiply
    66,571,048.40x = 99,862,102.20 × 21,131,560.40
  4. Step 4: Simplify right side
    66,571,048.40x = 2,110,242,044,310,272.75
  5. Step 5: Solve for x
    x = 2,110,242,044,310,272.75/66,571,048.40
  6. Step 6: Final answer
    x = 31,699,095.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.